Display device capable of correcting voltage drop and method for driving the same
US10276090B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2014 |
| Grant date | Apr 30, 2019 |
| Priority date | — |
| Expiry date | May 2, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An organic light emitting display device includes: a display panel including a plurality of pixels; a controller configured to correct input image signals supplied from the outside according to an amount of voltage drop; a data driver configured to supply data signals corresponding to the corrected image signals; and a scan driver configured to supply scan signals to scan lines. The controller includes: a load factor calculator configured to calculate a load factor of a panel; a horizontal block load factor calculator configured to calculate a driving current of a plurality of horizontal blocks formed by dividing the panel according to the scan lines; a voltage drop amount calculator configured to calculate the amount of the voltage drop based on the driving current; and a lookup table generator configured to generate a voltage drop correction lookup table based on the amount of the voltage drop.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.